www.pudn.com > execellentPlayer.rar > VolumeButton.cpp

// VolumeButton.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "MyPlayer.h" 
#include "VolumeButton.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
#define ID_TIP 1 
///////////////////////////////////////////////////////////////////////////// 
// CVolumeButton 
 
CVolumeButton::CVolumeButton() 
{ 
} 
 
CVolumeButton::~CVolumeButton() 
{ 
} 
 
 
BEGIN_MESSAGE_MAP(CVolumeButton, CButton) 
	//{{AFX_MSG_MAP(CVolumeButton) 
	ON_WM_SETCURSOR() 
	ON_WM_LBUTTONDOWN() 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CVolumeButton message handlers 
 
void CVolumeButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)  
{ 
	// TODO: Add your code to draw the specified item 
	CDC*pDC; 
	pDC=CDC::FromHandle(lpDrawItemStruct->hDC); 
	DrawBackground(pDC); 
	DrawLines(pDC); 
} 
 
void CVolumeButton::PreSubclassWindow()  
{ 
	// TODO: Add your specialized code here and/or call the base class 
	SetDefaultCursor(); 
	CRect rect; 
	GetClientRect(&rect); 
	m_ToolTip.Create(this); 
	m_ToolTip.SetDelayTime(100); 
	m_ToolTip.SetMaxTipWidth(200); 
	m_ToolTip.AddTool(this,"",rect,ID_TIP); 
 
	CButton::PreSubclassWindow(); 
} 
 
BOOL CVolumeButton::PreTranslateMessage(MSG* pMsg)  
{ 
	// TODO: Add your specialized code here and/or call the base class 
	m_ToolTip.RelayEvent(pMsg); 
	return CButton::PreTranslateMessage(pMsg); 
} 
 
BOOL CVolumeButton::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message)  
{ 
	// TODO: Add your message handler code here and/or call default 
	if(m_hCursor!=NULL){ 
		::SetCursor(m_hCursor); 
		return TRUE; 
	} 
	return FALSE; 
} 
 
void CVolumeButton::SetButtonCursor(HCURSOR hCursor) 
{ 
	m_hCursor=hCursor; 
} 
 
void CVolumeButton::DrawBackground(CDC*pDC) 
{ 
	CBitmap bitmap; 
	BITMAP  m_bitmap; 
	CDC MemDC; 
 
	bitmap.LoadBitmap(m_nBkgndID); 
	bitmap.GetBitmap(&m_bitmap); 
	MemDC.CreateCompatibleDC(pDC); 
	MemDC.SelectObject(&bitmap); 
 
	pDC->BitBlt(0,0,m_bitmap.bmWidth,m_bitmap.bmHeight,&MemDC, 
		0,0,SRCCOPY); 
 
	bitmap.DeleteObject(); 
	MemDC.DeleteDC(); 
} 
 
void CVolumeButton::DrawLines(CDC*pDC) 
{ 
	if(m_nPos<=0) 
		return; 
 
    CPen pen(PS_SOLID,2,RGB(200,97,0)); 
	CPen* pOldPen=pDC->SelectObject (&pen); 
     
	UINT nHeight=64; 
	UINT nSpace=4; 
		 
	CPoint pointBegin,pointEnd; 
	 
	pointBegin.x=0; 
	pointEnd.x=7; 
 
	for(UINT i=0;iMoveTo(pointBegin); 
    	pDC->LineTo(pointEnd); 
	} 
 
	pDC->SelectObject (pOldPen); 
} 
 
void CVolumeButton::SetDefaultCursor() 
{ 
	m_hCursor=LoadCursor(NULL,MAKEINTRESOURCE(32649)); 
} 
 
void CVolumeButton::SetToolTipText(CString strText) 
{ 
  m_ToolTip.UpdateTipText(strText,this,ID_TIP); 
} 
 
void CVolumeButton::SetPos(UINT nPos) 
{ 
  m_nPos=nPos; 
  Invalidate(); 
} 
 
UINT CVolumeButton::GetPos() 
{ 
	return m_nPos; 
} 
 
void CVolumeButton::AdjustPosition() 
{ 
	CWnd*pParent=GetParent(); 
 
	CBitmap bitmap; 
	BITMAP  m_bitmap; 
	CRect   rect; 
 
	GetWindowRect(&rect); 
	pParent->ScreenToClient(&rect); 
 
	bitmap.LoadBitmap(m_nBkgndID); 
	bitmap.GetBitmap(&m_bitmap); 
	rect.right=rect.left+m_bitmap.bmWidth; 
	rect.bottom=rect.top+m_bitmap.bmHeight; 
 
	MoveWindow(&rect,TRUE); 
 
	bitmap.DeleteObject(); 
   
} 
 
void CVolumeButton::Init(UINT nBkgndID,CString strTipText) 
{ 
  m_nBkgndID=nBkgndID; 
  m_ToolTip.UpdateTipText(strTipText,this,ID_TIP); 
  m_nPos=0; 
  AdjustPosition(); 
} 
 
 
 
void CVolumeButton::OnLButtonDown(UINT nFlags, CPoint point)  
{ 
	// TODO: Add your message handler code here and/or call default 
     CRect rect; 
	 GetClientRect(rect); 
	 if(rect.PtInRect(point)){ 
		 int n=64-(point.y/4)*4; 
		 if(n<0) 
			 n=0; 
		 m_nPos=(UINT)n/4; 
		 Invalidate();		  
	 } 
	CButton::OnLButtonDown(nFlags, point); 
}